Hal   - hale



i 3 Sheets-Sheet 1.

(No Model.)

C. W.'r ABAI.D\2VI1\T.

GAS ENGINE.

` Patnted May a law (No Modei.)

Na. 276,751. P

1 l j asneets-s-etz; I G. W. BALDWIN. V

GAS ENGINE.

3 sheets-sheet 3Q (No Modell) c. IW. BALDWlN."

v A GAS ENGINE. mir-215.2751;

Girons WnALnwIn, or

To `allwhom it may concern; ,y I I r Be it known that LICYRUs W, BALnu'Ix, of' Chicagogook oiintgglllnois, have invented Gus-Engines,olwhioh M ylfinrentoli r`lal;es to ,engines inheh .Ii-re,` construetedto be one ted `by the expansion nndlit'consistsiu construetiug `the saine' to Vexplode theoharge .offgzisosin contact; with n volmneoi nou-,esplosi part I: section of n Edouhle faction gueugine ofthefinlebvulve;I`" I -I I Therecisian explosionfoylimler,VA, aud'ooun `pressioncylinder Bgfor 4which `lnt'ter arroser- `a centr-Ih clrmnhenl'l, receiving' thjo `piston KD,

` I ing thoeylinder.

jpistolivfplungers, and .pistohrod* Q nrefholloir, and tlieppposite, eudslollthe pistonrodexteud chamber '1 `As:` thg.` `ps lon reeinrooatesftlle xroterfis d xjnn'u into tliexeylinder W, thenforoed through the piston-rod ,and lpiston" into `the cylinder W' adndintoundroutgof` theolIaIuhery II. This ei'eots `thefelemision oiynmrfeineut ,of,theiyatenforranydesired pnrnosenud serves I usjga. In Is'fiormaintainingthe;parts-Icom.

@chambers under itsown pressurqmrd, if,dei1 I y sIred, without the useof valves rni'lhojairfnml' gus nredruwn ntoieaolx endomhegcolmpre'ssion-cylinder` ns `thepiston B' moves longi Vtudinully through orralve, `V,lnereinafter deouIoAoo, ILLINOIS, `Assi-ono HALE, or SAME PLACE,

the I lattereeet is dosiredrhe wrt-:r

`in the lutter is` hroughtiinto` communication ing. lheniixi ure is thuscompres'sed andthe" IiIeII't`fI'c I m the `,port through `which lheimixture is delivcrerhus`v` described iILnIy applicatiou for LetterslnteIIL)` filed .August 10, 1882;

'scribed "in :said 4applitration, iu 4vbeing doubles` noting `The pis/ton tlI'erel'oreilIns two chan- The month ofrthe' port Lin theloylindris nu n.lex'el with the:Iohaun'elu', asshowu in Fig. Lund `the month ol' `(import 5 is on a lvel `with the. ehauuel ns shou'n in Fig, 3anrl in each is `utcheclr-x'n-l\'e,zb. By this oustrjuo tion nf ohngze of coin pressed gasesojs delivered `as `the speed of the engine is iucre'usedis elf-j `to eirculute fromeud mend and detzljeasiiigrI I the amount :druwn in, nsdescribed in ,Iny

`aforesaid upplion'iion, opened und closedhy 'u rali-59, controlled by the governor. IFur'many, purposes, 'especially verynlesirnble toilupart u grdunlwnotnin `to pistou D,;so 4nu Io explode n comnnrnl'rely fsinall volu'nre of explosive `grises agninstlhu lpiston -in n ooIupnratively lurge' -ohzrgnbmu eitherfendof the cylinder A-f-snyfrom thu` `portfi into the" chamberligand air iis, drawn -\\hch vis n. olieck-val\e, L. The igniting-port,

`n--ith n port, 4 or 5, lending l to :thureudol the cylinder A `toward which thepislon B' isInoIr- .otherpassage for guses through `the pistou.; j y

'finto the ohaluber -F through a port, G, iu

R To' WILLIAM I scribed, andtlIeJIIi'ItnI-u iseoInpresseIl onthef return motion ol' thel'iston until u elmuuel,`o,`

delivered suddenly ftothe. explosioulcylinder i `shortly after the pistou l) has begun its move-` i I I y -I 'lfhisengine illustrated dit'ers from (hilt dc-` III `the drawirigs,`Figure lfisurrelerato'n in,` .V f

65a nels, n. o'. one"extendingironr-eachfnd 7-to the` side, s sishongn' in full :Ind I'lotted`,l|ncs,-Fig. I

"ivheuiho en'giueis used for pumping,y when:` n `sudden pressure `against n` hodyot' inconu. fpressible fluid would` result," inv strains, il: in I I 99 the pistou. l I-ll'vet I hi's in the euglne shown :by `the ,coustruotioli of the 'cyiindrA and :left-,fthe plunger d sepnrute thejchninhersjh and E, the @explosive gaseqsllow` through, ,the I loo` shock than results from the explosion ot' theentire contents of the chamber. The parte may be setso as to permit a slight: communi'- cation between the two chambers just before thc explosion, and other structures and Vvalve arrangements may be used, so as to put the I explosion-chamber into communication with another chamber containing a body of nonexplosive gas just prior to or after the explosion, the effect being approximately the same, audbythus .varying the structure and arrangements Ican adapt the machine to the -special class of work to be performed. As

there are two chambers, there should bc two outlets for the spent gases. I therefore putthe exhaust-pipe P into communication with the chamber F by a channel, h, and the port G, and with the chamber E by a channel, k', titting valves o o' to seats in said channels, both valves being connected to one stem, N, -a spring, f, tending to keep the valves normally on their seats. As one valve counterbalnnces the other, the automatic lifting of the valves under the back-pressure is prevented. To lift the valves 'as the piston begins its return movement, I use a tappet M, upon the crossheadO, which'strikes an tilts a T-lever, R, as the piston completes its stroke in either direction, said iever being slotted to receive a pin, z', on a lever, X, larranged below the valve-stems N N, and lii'ting first one and then the .other as the lever R is vibrated. The movement of the pistonrod is communicated to a crank-shaft through the medium of a pair of connecting-rods, an eccentric operat-` ing the piston B; but any other devices may he used for these purposes. The arresting of the engine with a full charge in the cylinder, ready'to be exploded to start the engine, is eected by forming a triangular link, I, upon theeccentric-rodJ to receive the cross-pin j of the connecting-arm B. When the link is vdo'wn the piston B' reciprocates with the movement of the eccentric in unison with the main piston. When the link is raised the piston B is'left in position and the motion of the eccentric is withont'etlect, substantially as described in my application executed September 16, 1882. The air and gas inlet valves V consist cach oia diskvalve, k, fitted to a seatsin thc end ot' '.he cyliuder,and secured to a stem, l, sliding in a' bracket, m, andfsurrounded by a spring, n., which tends to keep the valve in its seat. lThe gas-pipe p, closed at the end, terminates near ille valve-disk, and has a side opening, 1l, which is covered by a plate, sattached to the valve, and having a hole,'29, which communicates with the openingll when the va-lve is on" of its seat. When the piston B' moves inward the valve is lifted by theairpressure and the openings 11 and 29 are made to coincide, so that the gas mingles and enters the cylinder with the inliowing air. When the valve closes, on the piston ceasing its motion, the opening 11 is covered and the ow ot' gas arrested.

` It will be apparent that some of the features above described are applicable tosingle'acting engines, and to engines of a different construction from that described.

1 reserve for other applications for Letters Patent any patentable features not specifically claimed.

I claim- 1.` The combination, in a gas-engine, of 'a cylinder and piston anda supplemental chamber, and appliances, substantiallyas described, whereby said-chamber is filled with air prior to the explosion of the charge, and is put into communication with the explosion-chamber at about the moment of the explosion, substantially as set forth.

2. The combination of the explosioncham ber, a supplemental airchamber communicating with the end thereof, and appliances, sub

stantially as described, whereby mixed gases.

are exploded in the explosion-chamber against a body of air in the supplemental chamber, substantially as set forth'.

3. Thecombination, with the cylinder, of a piston havingla.l plunger-extension, inlet and exhaust ports and channels, valves o o', levers X and R, and tappetiy upon the piston'rod, substantially as set forth.

4. A gas-engine h ivmg a pistou for acting directly on a body ot' water, and provided with a chamber for containing a body of air, and appliances, substantially as described, whereby said chamber is pnt into communication with the explosion-chamber about the time of the explosion, substantially as set forth.

5. The combination, with the double-acting explosion-cylinder and its piston, of the com- `pression-cylinder B, having gas'- and air inlets at the ends, pistoni B,having ports a a', extending from opposite ends to the side, and ports 4 5 between the two cylinders, substantially as specified.

ti. The combination, in n gasengine, of a hollow piston and piston-rod and a pnmp-cyl inderand check-valves,whereby water in drawn into and forced positively from said piston and through the rod by the reciprocating of the latter, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presenceot two snb scribing witnesses.'

. OYRUS W. BALDWIN.

Witnesses: Y 

